Dynamic imaging with dual-source gated Computed Tomography (CT): Implications of motion parameters on image quality for wrist imaging

Puay Yong Neo, Ita Suzana Mat Jais, Christoph Panknin, Chin Cheung Lau, Lai Peng Chan, Kai Nan An, Shian Chao Tay

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

Objective: Dynamic Computed Tomography (CT) promises insights into the pathophysiology of carpal instability by recording images of the carpus while it is in motion. The purpose of this study was to investigate the effect of motion velocity on image quality for dynamic carpal imaging applications using a clinical dual-source CT (DSCT) scanner. Methods: A phantom with targets in the axial, coronal and sagittal planes was attached to a motion simulator and imaged using a 64-slice DSCT scanner. Data was acquired when the phantom was stationary and during periodic linear motion. Spatial resolution, motion artifacts and banding artifacts were assessed. Results: Mean spatial resolution was 0.82. mm at 36. mm/s and 0.79. mm at 18. mm/s. Banding artifacts were mild at 36. mm/s and minimal at 18. mm/s. Motion artifacts were minimal at motion velocity of up to 36. mm/s in both the coronal and sagittal planes. Axial plane motion artifacts were moderate at 36. mm/s and mild at 18. mm/s. Discussion: Sub-millimeter resolution is achievable with commercially available DSCT scanners with mild to moderate amounts of motion artifacts at velocities of 18. mm/s and 36. mm/s respectively.

原文English
頁(從 - 到)1837-1842
頁數6
期刊Medical Engineering and Physics
35
發行號12
DOIs
出版狀態Published - 2013 十二月

All Science Journal Classification (ASJC) codes

  • 生物物理學
  • 生物醫學工程

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